Germane H4Ge structure

Flashcard maker : Lily Taylor

H4Ge structure
Molecular Formula H4Ge
Average mass 76.672 Da
Boiling Point
Flash Point
Molar Refractivity
Surface Tension
Molar Volume
  • Experimental data
  • Predicted – ACD/Labs
  • Predicted – EPISuite
  • Predicted – ChemAxon
  • Experimental Physico-chemical Properties
    • Experimental Melting Point:

      938.3 °C FooDB FDB003630
    • Experimental Boiling Point:

      -127 F (-88.3333 °C)
      NIOSH LY4900000
    • Experimental Ionization Potent:

      11.34 Ev NIOSH LY4900000
    • Experimental Vapor Pressure:

      1 atm (760 mmHg)
      NIOSH LY4900000
    • Experimental Freezing Point:

      -267 F (-166.1111 °C)
      NIOSH LY4900000
    • Experimental Solubility:

      Insoluble NIOSH LY4900000
  • Miscellaneous
    • Appearance:

      Colorless gas with a pungent odor. [Note: Shipped as a compressed gas.] NIOSH LY4900000
    • Safety:

      20/21/22-34 Alfa Aesar 00123, 88067
      20/21/22-34-37 Alfa Aesar 13841, 14410
      20/21/22-36/37/38 Alfa Aesar 42242
      7/9-23-26-36/37-45 Alfa Aesar 00123, 88067
      7/9-26-36/37-45 Alfa Aesar 42242
      9-20-23-26-36/37/39-45-60 Alfa Aesar 13841, 14410
      CAUTION: May be harmful if swallowed Alfa Aesar 42242
      Not known to be hazardous in this form Alfa Aesar 00123, 10191, 10192, 11144, 42951, 43986
      WARNING: Causes lung, GI injury; eye and skin irritation Alfa Aesar 10190
      WARNING: CORROSIVE, burns skin and eyes Alfa Aesar 13841, 14410
    • First-Aid:

      Breathing: Respiratory support NIOSH LY4900000
    • Exposure Routes:

      inhalation NIOSH LY4900000
    • Symptoms:

      Malaise (vague feeling of discomfort), headache, dizziness, fainting; dyspnea (breathing difficulty); nausea, vomiting; kidney injury; hemolytic effects NIOSH LY4900000
    • Target Organs:

      central nervous system, kidneys, blood NIOSH LY4900000
    • Incompatibility:

      Bromine NIOSH LY4900000
    • Personal Protection:

      Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: No recommendation NIOSH LY4900000
    • Exposure Limits:

      NIOSH REL : TWA 0.2 ppm (0.6 mg/m 3 ) OSHA PEL ?: none NIOSH LY4900000

Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module

Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations:
ACD/LogD (pH 5.5):
ACD/BCF (pH 5.5):
ACD/KOC (pH 5.5):
ACD/LogD (pH 7.4):
ACD/BCF (pH 7.4):
ACD/KOC (pH 7.4):
Polar Surface Area: 0 Å2
Surface Tension:
Molar Volume:

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 1.12

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 482.98 (Adapted Stein & Brown method)
 Melting Pt (deg C): 188.60 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 4.24E-009 (Modified Grain method)
 Subcooled liquid VP: 2.19E-007 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 1.469e+004
 log Kow used: 1.12 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 1.3605e+005 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
 Class(es) found:
 Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : Incomplete
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 2.911E-014 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Can Not Estimate (can not calculate HenryLC)

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.7111
 Biowin2 (Non-Linear Model) : 0.8722
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 3.0298 (weeks )
 Biowin4 (Primary Survey Model) : 3.7372 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.4841
 Biowin6 (MITI Non-Linear Model): 0.5776
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.8361
 Ready Biodegradability Prediction: NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
 Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 2.92E-005 Pa (2.19E-007 mm Hg)
 Log Koa (): not available
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 0.103 
 Octanol/air (Koa) model: not available
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.788 
 Mackay model : 0.892 
 Octanol/air (Koa) model: not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 0.0000 E-12 cm3/molecule-sec
 Half-Life = -------
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 0.84 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 14.3
 Log Koc: 1.155 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 0.162 (BCF = 1.451)
 log Kow used: 1.12 (estimated)

 Volatilization from Water:
 Henry LC: 2.91E-014 atm-m3/mole (calculated from VP/WS)
 Half-Life from Model River: 1.761E+010 hours (7.337E+008 days)
 Half-Life from Model Lake : 1.921E+011 hours (8.004E+009 days)

 Removal In Wastewater Treatment:
 Total removal: 1.90 percent
 Total biodegradation: 0.09 percent
 Total sludge adsorption: 1.81 percent
 Total to Air: 0.00 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 3.93e-006 1e+005 1000 
 Water 33.5 360 1000 
 Soil 66.4 720 1000 
 Sediment 0.069 3.24e+003 0 
 Persistence Time: 617 hr


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